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300+ Japanese Logic Puzzles for Adults: With 13 Different Varieties of Brain Teaser

Logic Grid Puzzle Book for Smart Adults: Over 100 Fun and Challenging Logic Puzzles for Adults

Hard Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku, Binary Puzzle, Slitherlink, Sudoku X, Masyu, Jigsaw Sudoku, Minesweeper, Suguru, and Numbrix)

Logic Workbook for Gritty Kids: Spatial reasoning, math puzzles, word games, logic problems, activities, two-player games. (The Gritty Little Lamb companion book for developing problem solving, critical thinking & STEM skills in kids ages 6, 7, 8, 9, 10.)

Gödel's Proof

Mage Merlin's Unsolved Mathematical Mysteries

Book of Proof

The Puzzle Instinct: The Meaning of Puzzles in Human Life

Reverse Mathematics: Proofs from the Inside Out

Journey to the Edge of Reason: The Life of Kurt Godel

The Times Codeword 8: 200 cracking logic puzzles

Introducing Logic: A Graphic Guide (Graphic Guides)

Alfred Tarski

The Times Codeword: 150 cracking logic puzzles

Conceptual Mathematics: A First Introduction to Categories

Moral Calculations: Game Theory, Logic, and Human Frailty

Partial Truths: How Fractions Distort Our Thinking

Introduction to Automata Theory, Languages, and Computation, 3/e

An Investigation of the Laws of Thought

Tractatus Logico-Philosophicus

How to Solve It: A New Aspect of Mathematical Method

How to Prove It: A Structured Approach

Logic: A Very Short Introduction

Arithmetic

2022 Killer Sudoku: 365 Hard Puzzles for Every Day of the Year : Keep Your Brain Young

Everything and More: A Compact History Of Infinity

2022 Sudoku: 365 Easy to Hard Puzzles for Every Day of the Year

A Farewell to Ice: A Report from the Arctic

The Ultimate Logic Grid Puzzle Book for Adults: 100 Fun and Challenging Puzzles

2025 Killer Sudoku: 365 Hard (9x9) Puzzles for Every Day of the Year

The Logic Puzzle Advent Calendar: Puzzle Book for Adults with Christmas-Themed Logic Grid Puzzles from Medium to Near Impossible

Another Logic Workbook for Gritty Kids: Spatial Reasoning, Math Puzzles, Word Games, Logic Problems, Focus Activities, Two-Player Games. (Develop Problem Solving, Critical Thinking, Analytical & STEM Skills in Kids Ages 8, 9, 10, 11, 12.)

Activity Book for Smart Kids: 500 Logic Puzzles (Sudoku, Fillomino, Kakuro, Futoshiki, Hitori, Slitherlink, Killer Sudoku, Calcudoku, Sudoku X, Skyscrapers, Shikaku and Numbrix) :: Age 8-12

2021 Binary Puzzle: 365 Easy to Hard Puzzles for Every Day of the Year : Keep Your Brain Young

Activity Book: 500 Hard Logic Puzzles (Sudoku, Kakuro, Hitori, Minesweeper, Masyu, Suguru, Binary Puzzle, Slitherlink, Futoshiki, Fillomino)

Big Book of Sudoku Variants: 200 Easy to Hard Large Print Puzzles :: 8 Different Types of Sudoku (Samurai Sudoku, Jigsaw Samurai Sudoku, Samurai Sudoku X, Killer Sudoku, Sudoku 16x16, Flower Sudoku, Sohei Sudoku, Cross Sudoku)

The Language Lover’s Puzzle Book: A World Tour of Languages and Alphabets in 100 Amazing Puzzles

Principia Mathematica - Volume One

Sudoku Puzzles book for adults: 400+ Medium puzzles with full Solutions

2021 Jigsaw Sudoku: 365 Easy to Hard Puzzles for Every Day of the Year :: Keep Your Brain Young

The 300 Sudoku Very Hard Difficult Challenging Extreme Expert Level Puzzles brain workout large print

Can You Solve My Problems?: Ingenious, Perplexing, and Totally Satisfying Math and Logic Puzzles

Sudoku Puzzle Book: 500 Hard to Extreme : Keep Your Brain Young

Samurai Sudoku: 500 Medium Sudoku Puzzles Overlapping into 100 Samurai Style

Traditional Logic 1: Introduction To Formal Logic

Number Fill In Puzzle Book for Adults: 200 Number Fill Ins Puzzles with 6000+ Numbers to Fit In

The Giant Book of Kakuro: For Geniuses Only : 1000 Hard Cross Sums Puzzles (12x12)